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本文针对电路的频率特性,把电路、器件、版图的设计联系起来,合理地设计放大器的偏置电路.利用集成电路的版图设计,将与电路频率特性密切相关的偏置电路的寄生分布电容对电路频率特性的影响基本消除;在版图设计上采取一系列措施,有效地减小了晶体管、二极管、电阻和压焊点的分布电容,从而使其不成为影响频率特性的主要因素,保证电路具有宽频带特性.工艺实践做得的电路达到了预定性能指标.
Aiming at the frequency characteristic of the circuit, the circuit, the device and the layout design are connected, and the bias circuit of the amplifier is reasonably designed.With the layout design of the integrated circuit, the parasitic distribution capacitance pair of the bias circuit which is closely related to the frequency characteristic of the circuit The circuit frequency characteristics of the basic elimination; in the layout design to take a series of measures to effectively reduce the transistors, diodes, resistors and pads the distribution of capacitance, so that it does not affect the frequency characteristics of the main factors to ensure that the circuit has Broadband characteristics. Processes made of circuit technology to achieve the predetermined performance indicators.